<div class="dropdown">
  <button class="btn btn-default dropdown-toggle" type="button" id="dropdownMenu1" data-toggle="dropdown" aria-haspopup="true" aria-expanded="true">
    <span ng-bind="defaultText" ></span>
    <span class="caret"></span>
  </button>
  <ul class="dropdown-menu " aria-labelledby="dropdownMenu1" style="max-height: 200px; overflow:auto">
    <li ng-repeat="item in list">
      <a href="#" ng-click="activeMenu(item)" ng-bind="item.title || item.name || item" ></a>
    </li>
  </ul>
</div>
